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can i switch to ahci without reinstalling windows?

Solvedahciasrockbootraid21 replies · 282 views · started
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Accepted solution by Luca — If you end up in a loop, switch the BIOS back to teh original mode. Windows boots again and you can retry carefully. Nothing is lost by…
  1. Ava Larsen
    @ava_polar-34y

    guys pls help i was a BIOS reset, and the guide told me to switch the storage mode in teh BIOS from RAID to AHCI 😤 I did it, saved, rebooted, and got this:

    INACCESSIBLE_BOOT_DEVICE. i switched it back to RAID and Windows boots again, phew... but i still need AHCI for what Im doing. is there a safe way to switch without reinstalling Windows? the board is an ASRock P67 Pro, if that mattres. any ideas??

    6
  2. Yuki N.
    @regextinker

    hmmmm quick q laptop or desktop? Some laptops rely on RST/VMD for power features. ??

    thinking

    1 0 helpful
  5. Yuki N.
    @regextinker

    btw unrelated but anyone elses coffee machine also judging them today

    0 2 helpful
  7. Dario Arslan
    @dario_signal
    in reply to @ava_polar-34y

    yeahhh after switching, Device Manager should show Standard SATA AHCI Controller or Standard NVM Express Controller... the RST/RAID driver can stay installed; it just wont be used... you can remove it later via Apps or pnputil if you want. worked for me anyway 🤷

    6 3 helpful
  8. Zane Larsen
    @zlarsen

    On laptops with Intel VMD/RST, check the PC maker's support page. Some models expect RST mode for features like power management, and switching may affect battery life or sleep.

    2 0 helpful
  9. Dario Arslan
    @dario_signal

    windows only loads the storage driver needed for teh current mode at boot, switch modes and it cant find its boot disk... the common safe procedure: in an admin terminal run bcdedit /set safeboot minimal, reboot into BIOS, switch to AHCI, boot (Safe Mode loads the AHCI driver), then run bcdedit /deletevalue safeboot and reboot noramlly. good luck man!

    3 0 helpful
  10. Dario Arslan
    @dario_signal

    Back up first. The safe-mode method works in most cases, but if u use real RAID volumes (multiple drives), switching to AHCI will break the array. only do this with single-drive setups.

    lol

    22 0 helpful
  11. Luca
    @lucky_pilot237

    exact same thing happened to my office machine last month, is windows even worth bothering with or should i just leave it

    5 0 helpful
  12. Dario Arslan
    @dario_signal

    For a single SSD, AHCI vs RAID mode makes little practical speed difference. Switch only if u have a reason (like Linux compatibility). good luck man!

    19 2 helpful
  13. Yuki N.
    @regextinker

    im literally losing my mind here my second monitor setup is officially haunted

    1 0 helpful
  14. Elif
    @ereid_25-3sy

    following, having teh same problem

    13 1 helpful
  15. Luca
    @lucky_pilot237
    Accepted solution

    If you end up in a loop, switch the BIOS back to teh original mode. Windows boots again and you can retry carefully. Nothing is lost by flipping it back.

    31 9 helpful
  16. Luca
    @lucky_pilot237

    agreed

    2 13 helpful
  18. Yuki N.
    @regextinker

    hmm idk id just rienstall cleanly in AHCI mode if its a fresh system. less hacky.

    9 0 helpful
  20. Uma Alvarez
    @uma.alvarez4

    ok this thread just saved my weekend

    2 4 helpful

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